body{
  width: 100%;
  height: 100vh;
  background-image: linear-gradient(120deg, #a1c4fd 0%, #c2e9fb 100%);
}


.main{
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
  width: 400px;
  height: auto;
  opacity: 0.9;
}